GF Health Products 10 Plate Test Chart Books for Color Deficiency
Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red-green blindness; both complete and incomplete Includes four special plates for tests to determine the kind and degree of defect and color vision Makes use of peculiarity in red-green blindness; blue and yellow appear remarkably bright SpecificationsNumber of Plate 10Weight 016 lbs TO BE ELIGIBLE FOR REFUND, THIS ITEM MUST BE RETURNED TO THE SELLER IN ITS ORIGINAL CONDITION AND PACKAGING..
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